Can you roll your tongue? There is a myth spreading that if your family couldn’t do it as well. Many believes that this could be passed on with the help of inheritance.
Some people are bothered with their inability to roll their tongue. 20% of the population managed to learn how to do it by the time that they reach the age of 12. But some of the adults thought that it is impossible to learn how to roll their tongue.
So the myth is untrue, most people could even learn how to roll their tongue with practice.
According to the scientist named Alfred Sturtevant, he claims that this ability could not be inherited as he examined some identical twin and their capabilities of rolling their tongue. It turns out that they are different.
The truth is that there is no genetic basis on your capabilities of rolling your tongue.
Source: Diply
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